[DeTomaso] Difference between an aluminum radiator and one that is black
Thomas Tornblom
Thomas.Tornblom at hax.se
Wed Jun 24 03:59:09 EDT 2009
Göran Malmberg skrev:
> Absorbing heat? What about a black surface in a dark room?
Unless the room is at 0K (-273°C) the room is not strictly speaking dark ;-)
> Goran
Thomas
>
> -----Ursprungligt meddelande-----
> Från: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com]
> För Thomas Tornblom
> Skickat: den 24 juni 2009 08:16
> Till: mark skwarek
> Kopia: detomaso at realbig.com
> Ämne: Re: [DeTomaso] Difference between an aluminum radiator and one
> that is black
>
> mark skwarek skrev:
>> Has anyone studied whether there is a difference between an aluminum
> radiator and one that has been blackened. I would think the black one
> would reject more heat.
>
> I believe the difference in energy radiation is insignificant between a
> black and a shiny radiator.
>
> Energy absorption is very different though as much of the energy is
> reflected off of a shiny surface while a dull black surface absorbs lots
>
> of energy.
>
> I think the confusion lies in the term "Black Body Radiation",
> http://en.wikipedia.org/wiki/Black_body. The only significant factor is
> the temperature of the radiating body.
>
>>
>> Mark
>>
>>
>
> Thomas
>
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